Looking for anAir gun repair shop

I live in East Tennessee near Bristol and wouldnl like to find an Air gun repair shop within driving distance that knows what they are doing. I have RAW,FX and one Marauderr in 22 cal. Would prefer North Carolina or a place no more than 350 miles away so I can drive it. I have checked around Nashville but didn't find anything that suited me.i did send my RAW to Az in Idaho and got great results but shipping eat me up but the gun came back as promised but shipping and the time was not good but the work was great. Please include phone number and the name of the shop. Thanks in advance.